<div el-row>
  <div el-col
       span="6">
    <div class="grid-content left">
      <div class="header">
        <div class="timer">
          00 : 32 : 40
        </div>
        <div class="nav">
          <h4 class="nav__title">
            一、单选题
          </h4>
          <div class="nav__content">
            <span class="item"
                  *ngFor="let item of arr; let i = index">{{i}}</span>
          </div>
        </div>
        <div class="nav">
          <h4 class="nav__title">
            二、多选题
          </h4>
          <div class="nav__content">
            <span class="item"
                  *ngFor="let item of arr; let i = index">{{i}}</span>
          </div>
        </div>
        <div class="nav">
          <h4 class="nav__title">
            三、问答题
          </h4>
          <div class="nav__content">
            <span class="item"
                  *ngFor="let item of arr; let i = index">{{i}}</span>
          </div>
        </div>
      </div>
    </div>
  </div>
  <div el-col
       span="18">
    <div class="grid-content right">
      <h2>
        近代史测试题
      </h2>

      <div class="category">
        一、单选题
      </div>

      <div class="question">
        <h4 class="nav__title">
          第1题
        </h4>
        <div class="choice">
          党必须集中精力领导经济建设，组织、协调各方面的力量，同心协力，围绕（）开展工作，促进经济社会全面发展。
        </div>
        <div class="choice">
          <p>A、思想建设</p>
          <p>B、政治建设</p>
          <p>C、经济建设</p>
          <p>D、文化建设</p>
        </div>
        <div class="selector">
          <el-radio class="radio"
                    [(model)]="anwser"
                    label="A">A</el-radio>
          <el-radio class="radio"
                    [(model)]="anwser"
                    label="B">B</el-radio>
          <el-radio class="radio"
                    [(model)]="anwser"
                    label="C">C</el-radio>
          <el-radio class="radio"
                    [(model)]="anwser"
                    label="D">D</el-radio>
        </div>
      </div>
      <div class="toolbar">
        <el-button type="primary"
                   size="small">下一题<el-icon name="arrow-right"></el-icon>
        </el-button>
      </div>
    </div>
  </div>
</div>